I have finally received this picture. Prince of Persia will be bundled with Xbox 360 throughout EMEA very soon (Europe, the Middle East and Africa). Unfortunately, I was not able to discern when this bundle will launch, probably as soon as the Holiday Bundles are off of shelves.
Word of this comes from directly inside Microsoft, so at least it is confirmed, but I have no article I can link to at this time, other than a few older “rumor” type blog posts.